thunderbird-78.9.1-1.0.1.AXS4

Mozilla Thunderbird is a standalone mail and newsgroup client.

This update upgrades Thunderbird to version 78.9.1.

Security Fix(es):

* Mozilla: An attacker may use Thunderbird's OpenPGP key refresh mechanism to
poison an existing key (CVE-2021-23991)
* Mozilla: A crafted OpenPGP key with an invalid user ID could be used to
confuse the user (CVE-2021-23992)
* Mozilla: Inability to send encrypted OpenPGP email after importing a crafted
OpenPGP key (CVE-2021-23993)

For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE page(s)
listed in the References section.

CVE-2021-23991
** RESERVED ** This candidate has been reserved by an organization or individual
that will use it when announcing a new security problem. When the candidate has
been publicized, the details for this candidate will be provided.
CVE-2021-23992
** RESERVED ** This candidate has been reserved by an organization or individual
that will use it when announcing a new security problem. When the candidate has
been publicized, the details for this candidate will be provided.
CVE-2021-23993
** RESERVED ** This candidate has been reserved by an organization or individual
that will use it when announcing a new security problem. When the candidate has
been publicized, the details for this candidate will be provided.